Controlling-plug for gasolene-filters.



F. A SUTHERLAND.

CONTROLLING PLUG FOR GASOLENE FlLTERS.

APPLlCATlON EILED APR.25. 1914.

1,142,992. Patented June 15, 1915.

awba/wtoo FORREST H 'SUTHERLHNO THE NORRIS PETERS CO PHDTO -LITHON WASHINGTON. D. C.

ATEN

CONTROLLING-PLUG FOR GASOLENE-FILTERS.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed April 25, 1914; Serial No. 834,401.

To all whom it may concern Be it known that I, FORREST A. SUTHER- LAND, a citizen of the United States, residing at Springfield, in the county of Penobscot and State of Maine, have invented certain new and useful Improvements in Controlling-Plugs for Gasolene-Filters, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to gasolene filters, and more particularly to means for controlling the drainage or discharge of water strained from the gasolene and of the dirt or dust which may have been strained from the gasolene.

The object of my invention is the provision of a very simple means whereby water and dirt which may be strained from gasolene by filtration may be readily discharged from the filter after the filter has done its work.

In the accompanying drawings Figure 1 is a vertical sectional view of my improved lene filter which consists of a sectional casing 1 between which the filtering diaphragm 7 is secured, the sections of the casing being held together in any usual well known manner. The casing below the diaphragm is provided with an inlet pipe 10 and above the diaphragm with an outlet pipe 12. A cap or plug 13 is threadably engaged with the interior threads 5 at the outer end of the upper section to close the upper end of the filter, and a cap 14 is also connected with the interior threads 5 at the lower end of the lower section 3, to close the lower end of the filter. The cap 14 is formed with a concave upper face 15, and a transverse opening 16 is formed in the cap which extends from the wall of the cap adjacent the head thereof to the base of the concavity 15, to form a draw-0E port for the filter. It will be readily understood that when the cap 14 is turned into the lower section until the head of the cap engages the lower edge of the section, the port will be closed by the wall of the section so that the sediment or water cannot be drawn off from the filter until the cap is turned sufiiciently to dispose the outer end of the port below the lower edge of the section. To prevent accidental turning of the cap 14, a locking plate 17 is pivotally mounted intermediate of its ends upon a pin 18 which extends into the wall of the section 3 adjacent its lower end, the locking plate, when in a vertical plane, being adapted to extend below the lower edge of the section to engage against one face of the angular head of the cap 14, to prevent the same from turning. A set screw 19 is mounted in the lower end of the locking plate 17, the set screw being adapted for engagement against the periphery of the section to secure the locking plate in its vertical position, with the lower end thereof engaged against the head of the cap. To form tight joints between the caps and their respective sections, gaskets 20 are disposed between the heads of the caps and the outer edges of the sections to prevent any liquid from leaking from the filter.

The practical use of my device will be apparent from the drawing. It is well known that oil will float upon water and that any water or sediment will collect in the lower portion of a filtering body. In my invention the water and dirt filtered from the gasolene will collect in the lower portion of the filter and when it is desired to draw off the sediment and water the set screw 19 is loosened so as to permit the rotation of the locking member 17, which permits the ca} or plug 14 to be so turned as to carry the outer end of the boss 16 below the lower edge of the lower section, thereby allowing the water and sediment to escape from the filter. The water and sediment may be drawn from the filter without material waste of gasolene, as it will be easily seen that when all of the water and sediment have passed out through the bore of the plug or cap 14 the cap 14 may be turned in the reverse direction, whereupon the wall of the filter closes the opening 16.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent, is

A device of the class described comprising a chambered member, said member being interiorly threaded at one end, a cap threadably engaged with the interior threads of said member to close one end of the same, said cap having an angular head projecting from the member, the cap also having an elongated opening formed therein extending from the inner face of the cap to the periphery thereof adjacent the outer end of the threaded portion, the cap being normally by accidental turning of the cap is preturned Within the member so that the outer vented. '10

'end of the opening is closed by the Wall of In testimony whereof I hereunto afiiX my the member, a locking plate rotatably consignature in the presence of tWo Witnesses.

neeted to the member and adapted to project FORREST A. SUTHERLAND. at one end beyond the threaded end of the Witnesses: I member for engagement against one of the GEORGE HEBB,

angular faces of the head of the cap, Where- HARRY B. BURR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

Washington, D. G. 

